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(a) Estimate the work done by the force shown on the graph (Fig. 11-33) in displacing a particle from x = 1 m to x = 3 m. Refine your method to see how close you can come to the exact answer of 6 J. (b) The curve is given analytically by F x = A/x 2 , where A = 9 N∙ m 2 . Show how to calcite the work by the rules of integration.
work done by force is given by f.dsheref=9/x2on integrating between limits x=1 to x=3workdone =[-9/x]31 hence w.d = 6 J
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